Eobeet e



ATENT emcee ROBERT R. ZELL, OF BALTIMORE, MARYLAND.

FERTILIZER-BAG.

SPECIFICATION forming part of Letters Patent No. 258,524, dated May 23, 1882.

Application filed March 9, 1882. (N0 specimens.)

To all whom it may concern:

Be it known that I, ROBERT It. ZELL, of the city of Baltimore and State of Maryland, have invented certain Improvements in Fertilizer-Bag's, of which the following is a specification.

The object of this invention is to construct bags for phosphatic fertilizers capable of resisting the corrosive action of the acids in the said fertilizers.

In carrying out my invention I take of rosinsoap, or the ingredients of such soap, one hundred pounds; pulverized. alum, five pounds; pulverized asbestos, four pounds; dissolved gelatine, one pound; and water, a sufficient quantity. After the materials are thoroughly mixed, bagging, or the bags to be rendered the interstices in the bagging. It also renders the bags practically fire-proof.

I claim as my invention- An acid-proof bag for holding fertilizers, which consists of bagging treated with an aqueous solution of rosin-soap, alum, asbestus,

and gelatine, in the proportions substantially as specified.

ROBERT R. ZELL.

Witnesses:

GEO. P. WEBB, E. L. Woonsmn. 

